The app and the desktop companion are super easy to use. I start the timer on the app when I start shooting, tap export and snap a pic of the QC when Im done, stick my card in my computer and hit one button. The trick is to enable the writing of the metafile in the same folder that the pics are in (my ad card.) The desktop app remembers the last location and I only have to click ok. When its done I import to Lightroom and I have fully geotagged raw files. Perfect.
MateiGheorghiu about gps4cam - Geotag Your Photos, v6.1.1